<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<div id="geary-body">
<div>Hello everyone.</div>
<div><br>
</div>
<div><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2;">In my project i have a standard 3D triangle mesh surface where i select all vertices which lie inside a
region (polygon) which is defined by a closed polyline created by an user interaction using the vtkContourWidget:</span></div>
<div><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2;"><br>
</span></div>
<div><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2;"><img style="max-width: 100%" src="cid:inline_01@geary"></span></div>
<div><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal; orphans: 2; widows: 2;"><br>
</span></div>
<div style="orphans: 2; widows: 2;"><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;">I then </span><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;">create
a polygon mesh which has the shape of the </span><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;">vtkContourWidget polygon selection contour line plus the selected part of the underlying
mesh and which </span><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;">lies like a sticker or texture on the the given stl mesh surface:</span></div>
<div style="orphans: 2; widows: 2;"><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;"><br>
</span></div>
<div style="orphans: 2; widows: 2;"><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;"><img style="max-width: 100%" src="cid:inline_00@geary"></span></div>
<div style="orphans: 2; widows: 2;"><span style="font-family: Calibri, Helvetica, sans-serif, serif, EmojiFont; font-size: 16px; font-variant-ligatures: normal;"><br>
</span></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;">For the reconstruction of the surface i use the vtkDelaunay2D filter using all the points of the vtkContourWidget polygon and the
mesh surface points as inputs.</span></font></div>
<div style="orphans: 2; widows: 2;"><br>
</div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;">This works absolutely great but depending on the used mesh i sometimes get the following error message from the vtkDelaunay2D filter:</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><br>
</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><i>"vtkDelaunay2D (0x556183dcfba0): Edge not recovered, polygon fill suspect"</i></span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><br>
</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><br>
</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><b>Does anybody know why this happens and what i can do to get rid of this error?</b></span></font></div>
<div style="orphans: 2; widows: 2;"><b><br>
</b></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><b>While nice, but since i don't necessarily need the delaunay properties, is there an alternative to the vtkDelaunay2D filter to
get a polygon surface mesh given a bunch of points as an input? (points -> surface)</b></span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><br>
</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><br>
</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;">Thank you very much in advance.</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;"><br>
</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;">Regards,</span></font></div>
<div style="orphans: 2; widows: 2;"><font face="Calibri, Helvetica, sans-serif, serif, EmojiFont"><span style="font-size: 16px;">Berti</span></font></div>
</div>
</body>
</html>